Mean (+/− SEM) percent freezing during the context test of Experiment 2b. Subjects were (a) adolescents or (b) adults that were given 0, 0.5, 1.0 or 1.5 g/kg ethanol prior to training with tone-shock pairings. Context freezing was assessed 24 h later. Adolescents were unaffected by pre-training ethanol. In contrast, adults showed an ethanol-related reduction in context fear that was especially pronounced in the females. Adult females exhibited reduced context freezing following pre-training ethanol at 0.5, 1.0 and 1.5 g/kg, whereas the adult males were affected at the highest dose only.